Place the numbers in descending order.
2.3 x 10^-10 ; 3.2 x 10^-10 ; 2.3 x 10^-12 ; 2.3 x 10^-8
To place the numbers in descending order, we need to compare their magnitudes, which are indicated by the exponents in scientific notation. Remember that a smaller exponent indicates a larger magnitude.
Let's compare the numbers one by one:
1. 2.3 x 10^-10
2. 3.2 x 10^-10
3. 2.3 x 10^-12
4. 2.3 x 10^-8
By comparing the exponents, we can see that:
- 10^-8 is larger than 10^-10
- 10^-10 is larger than 10^-12
Therefore, the descending order of the given numbers is:
2.3 x 10^-8 ; 3.2 x 10^-10 ; 2.3 x 10^-10 ; 2.3 x 10^-12
To arrange the numbers in descending order, we need to compare the exponents of 10 first.
The numbers are:
1. 2.3 x 10^-10
2. 3.2 x 10^-10
3. 2.3 x 10^-12
4. 2.3 x 10^-8
Comparing the exponents, we have:
1. -10
2. -10
3. -12
4. -8
Now, let's compare the coefficients for each number.
1. 2.3 x 10^-10
2. 3.2 x 10^-10
3. 2.3 x 10^-12
4. 2.3 x 10^-8
Comparing the coefficients, we have:
1. 2.3
2. 3.2
3. 2.3
4. 2.3
Arranging the numbers in descending order based on the exponents, we have:
3.2 x 10^-10
2.3 x 10^-10
2.3 x 10^-12
2.3 x 10^-8
So, the numbers in descending order are:
3.2 x 10^-10, 2.3 x 10^-10, 2.3 x 10^-12, 2.3 x 10^-8